Professor T. plot
Professor Jasper Thalheim, also known as 'Professor T', is a lecturer in criminology at the University of Cologne. He enjoys a high reputation among professionals, but has few social skills. He bluntly expresses his views on what is bothering those around him. In addition, he suffers from his excessive cleaning compulsion and is afraid of germs. His former student and inspector Anneliese Deckert asks him for help on a case because of his expertise. As a result, Professor T works as an advisor for the Cologne Criminal Police Department. However, the partnership is complicated because of his arrogance.